-ly bbb bbd bbl bbs bby bdb bdd bdl bds bdy blb bld bll bls bly bsb bsd bsl bss bsy by- byd byl bys dbb dbd dbl dbs dby ddb ddd ddl dds ddy dl- dlb dld dll dls dly dsb dsd dsl dss dsy dy- dyb dyd dys dyy lbb lbd lbl lbs ldb ldd ldl lds ldy llb lld lll lls lly lsb lsd lsl lss lyd lyl lys sbb sbd sbl sbs sby sdb sdd sdl sds sdy slb sld sll sls sly ss- ssb ssd ssl sss sy- syb syd syl sys ybl ybs yby ydl yds ydy yld yll yls yly ysb ysl yss ysy yyb yys yyy